Ammonia → HCID 86681224, compound

Participants

Reaction Conditions

Reaction Steps

A stirred mixture of 3-iodo-1-((2-(methylthio)benzo[d]thiazol-6-yl)methyl)pyrazin-2(1H)-one (750 mg, 1.81 mmol), ammonia (7 M solution in MeOH, 2 mL, 14 mmol), and DMSO (1.5 mL), was heated in a Biotage Microwave Synthesizer at 150° C. for 15 min. The mixture was cooled to and partitioned between EtOAc and a 1:1 mixture of water and brine. The organic layer was separated, dried over MgSO4, filtered, and concentrated under reduced pressure. The residue was purified by silica gel flash chromatography eluting with a gradient of 100% DCM to 2% MeOH in DCM to afford 3-amino-1-((2-(methylthio)benzo[d]thiazol-6-yl)methyl)pyrazin-2(1H)-one (149 mg) as a yellow solid. 1H NMR (500 MHz, DMSO-d6) δ 7.96 (s, 1H), 7.82 (d, J=8.4 Hz, 1H), 7.43 (dd, J=1.5, 8.4 Hz, 1H), 6.92 (d, J=4.7 Hz, 1H), 6.65-6.67 (br m, 3H), 5.11 (s, 2H), 2.78 (s, 3H); LCMS (ESI) m/z 305 (M+H)+.

Provenance & Evidence